Under the leadership of mikhail gorbachev, the doctrine of perestroika called for which of the following?
a. openness in communication
b. a central banking system under private ownership
c. more local control and free-market practices
d. democratic elections

The correct answer is letter C.

 

Under the leadership of Mikhail Gorbachev, the doctrine of perestroika called for more local control and free-market practices. Perestroika is loosely translated to “restructuring” which induced market-like reforms in the society of the Soviet Union. 

The correct answer is "  it was believed that the dispute emerged in 632 just after the death of the prophet muhammad."

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.